Ch2br chbr ch3 ch3 ch. Ch2 ch2 br2. ch2br-ch2br. ch2br ch ch ch2br h2. ch2br-ch2br zn.

Ch2br chbr ch3 ch3 ch. Ch2 ch2 br2. ch2br-ch2br. ch2br ch ch ch2br h2. ch2br-ch2br zn.
40 / 40